Home / 87,912.74-131,839.55-28,734.55

Finding the Fourth Proportional to 87,912.74, 131,839.55 and 28,734.55

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Solution

The fourth proportional to 87,912.74, 131,839.55 and 28,734.55 is: 43,092.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,912.74 : 131,839.55 = 28,734.55 : x
  2. Step 2: Convert to fraction form
    87,912.74/131,839.55 = 28,734.55/x
  3. Step 3: Cross multiply
    87,912.74x = 131,839.55 × 28,734.55
  4. Step 4: Simplify right side
    87,912.74x = 3,788,349,775.94
  5. Step 5: Solve for x
    x = 3,788,349,775.94/87,912.74
  6. Step 6: Final answer
    x = 43,092.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.